package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import io.swagger.v3.oas.models.media.PasswordSchema;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import javax.net.ssl.SSLEngineResult;
import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 对明文密码进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex (password.getBytes ());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee ();
        //对象拷贝
        BeanUtils.copyProperties (employeeDTO , employee);
        //设置状态 0:禁用 1:启用
        employee.setStatus (StatusConstant.ENABLE);
        //设置密码
        employee.setPassword (DigestUtils.md5DigestAsHex (PasswordConstant.DEFAULT_PASSWORD.getBytes ()));
        //设置当前账号创建时间和修改时间
        /*employee.setCreateTime (LocalDateTime.now ());
        employee.setUpdateTime (LocalDateTime.now ());
        //设置当前记录创建人id和修改人id
        employee.setCreateUser (BaseContext.getCurrentId ());
        employee.setUpdateUser (BaseContext.getCurrentId ());*/
        employeeMapper.insert (employee);

    }

    @Override
    public PageResult pageQuer(EmployeePageQueryDTO employeePageQueryDTO) {
       //开始分页查询
        PageHelper.startPage (employeePageQueryDTO.getPage (),employeePageQueryDTO.getPageSize ());
        Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
        long total = page.getTotal ();
        List<Employee> result = page.getResult ();
        return new PageResult (total,result);
    }

    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee ();
        BeanUtils.copyProperties (employeeDTO,employee);
        employee.setUpdateTime (LocalDateTime.now ());
        employee.setUpdateUser (BaseContext.getCurrentId ());
        employeeMapper.update(employee);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
      /*  Employee employee = new Employee ();
        employee.setStatus (status);
        employee.setId (id);*/
        Employee employee = Employee.builder ()
                            .id (id)
                            .status (status)
                            .build ();

        employeeMapper.update (employee);
    }

    @Override
    public Employee getById(Long id) {
        Employee employee=employeeMapper.selectById(id);
        employee.setPassword ("****");
        return employee;
    }


}

